I have mixed feelings about electronics in appliances
In some cases, electronics allow functions that a mechanical timer could not perform on its own. Machines that "think" may offer interesting cycle variations, etc. but in 2003 when I got my GE Spectra range (it came with the new house) I repeatedly asked myself "And why do I need this keypad vs. the function knob and temp dial that was on my 1990 GE?". The jury is still deliberating on that one. I would presume that at some point the board will fry in my current GE and I'll be faced with replacing the unit or paying a ransom for a new board - things which never would have happened to the 1990 range.
That said, John is right - timers go bad too. In fact, both my 1980 built Kenmore washers that are installed right now did timer related things last weekend that tell me dead spots are developing. In one, the motor briefly turned off then back on as the timer was advancing during spin. This is VERY common in Mallory timers used in WP washers from the 1970s and 1980s. The other machine, also with a Mallory timer, actually shut off in between increment advances, also in spin. It was funny because I noticed a certain early silence in the garage, went out to investigate, and the machine turned back on as I was about 12 feet away from it, almost as if it thought to itself "oh crap, here he comes, I'd better get with it!".
My point is that yes, electronics aren't perfect. I fail to see why they're necessary sometimes, and they cause premature replacement of appliances (and thus cause waste). But, what they replaced wasn't perfect either, not at least when it came to timers and other controls in appliances. I'm not sure about movie projectors....
Gordon